How to Size NQ and MNQ Trades From Your Stop

By CK · Futures trader since 1998

I learned to pick the stop before the size

I’ve been trading futures since 1998. One habit has stayed with me longer than almost anything else: I decide where I’m wrong before I decide how many contracts I’m trading.

A lot of newer traders do it the other way: they pick a size that matches how good the setup feels, then look for a stop that fits the size.

In my experience, that order is where a lot of accounts get into trouble. The size came from confidence. The stop came from hope. Neither came from math.

Maybe you’ve asked yourself this

Maybe you’ve opened a prop-firm evaluation and wondered whether to trade one NQ or a handful of MNQ.

Maybe you’ve seen a “50K” label on an account and assumed you had $50,000 to work with.

Or maybe you’ve only done the dollar math after a trade moved 30 points against you.

If any of that sounds familiar, this article walks through the sizing math step by step. I’m not going to tell you what to trade or how much to risk. I’ll show you how the numbers fit together.

The two numbers you need first

Everything starts with what one point is worth.

NQ, the E-mini Nasdaq-100 future, moves $20 per index point. Its minimum tick is 0.25 points, or $5. MNQ, the Micro E-mini Nasdaq-100, is one-tenth of that: $2 per point, or $0.50 per tick (source: CME Group contract specifications for E-mini Nasdaq-100 and Micro E-mini Nasdaq-100).

So 10 MNQ moves exactly the same dollars per point as 1 NQ. That one-tenth step is why MNQ is often the more flexible sizing tool for a small account: it lets you adjust size in smaller pieces.

Here’s the point: size comes from the stop, not from conviction

Your size is the output of the math, not the input. You choose the dollars you’re willing to lose and where your stop goes. The contract count falls out of those two numbers.

Contracts = risk in dollars ÷ (stop in points × dollars per point)

Then round down, never up.

Walking through it, step by step

Step 1: Find the room you actually have. On a prop-firm account, start with the drawdown you have left, not the account’s headline size. Prop-firm evaluation and funded accounts are typically simulated, and the size on the label isn’t money you can lose freely. Illustration only: a “50K” account whose floor sits $2,000 below the current balance has $2,000 of room. That $2,000 is your real risk capital.

On an intraday trailing account, unrealized open profit can raise the floor, so check your room before each trade, not just at the start of the day.

Step 2: Decide the dollars at risk on this trade. Keep it a small fraction of the room you have left. How small is your call, and there’s no right number for everyone. Illustration only: with $2,000 of room, someone who decides on 5% would risk $100.

Step 3: Place the stop where the idea is wrong. The stop belongs at the price that tells you the trade idea didn’t work, not at the price that makes the size feel comfortable. Illustration only: say that’s 25 points away.

Step 4: Do the math for both contracts.

Illustration only:
– MNQ: 100 ÷ (25 × $2) = 100 ÷ 50 = 2 MNQ
– NQ: 100 ÷ (25 × $20) = 100 ÷ 500 = 0.2 NQ, which you can’t trade

Here, one NQ with a 25-point stop is $500 of risk, five times the plan. MNQ is the tool that fits.

Step 5: Round down and leave a buffer. If the math says 4.6 contracts, it’s 4. Stops can fill worse than the price you set, especially around the 9:30 AM ET open and scheduled news at 8:30 AM, 10:00 AM and 2:00 PM ET. That’s called slippage, and “my stop was at X” isn’t a guarantee. Illustration only: if you allow 2 points of slippage on that 25-point stop, the math uses 27 points: 100 ÷ (27 × $2) = 100 ÷ 54 = 1.85, so 1 MNQ.

When the stop gets wider, the size gets smaller

The market doesn’t move the same way every week. A stop that fits a quiet day can be too tight on a fast one.

Illustration only: keep the same $100 risk.
– 20-point stop: 100 ÷ (20 × $2) = 2.5, rounded down to 2 MNQ
– 40-point stop: 100 ÷ (40 × $2) = 1.25, rounded down to 1 MNQ
– 80-point stop: 100 ÷ (80 × $2) = 0.625, which rounds down to 0. The trade doesn’t fit.

The dollars at risk stayed fixed while the stop and size adjusted. In my experience, the recent range of the past few sessions is a plain way to judge whether your usual stop still makes sense.

If the stop you need is so wide that even 1 MNQ breaks your dollar limit, the math is telling you something: that trade doesn’t fit your account today. Skipping it is a valid answer.

Check the firm’s limits before you click

Two more rules can override your math.

Contract limits. Firms cap how many contracts you can hold. At many firms, 10 MNQ count as 1 NQ toward that limit, but not all of them work that way. Check your firm’s current rules, word for word.

Daily loss limit. Even if each trade is sized well, several losses in a row add up. Decide your own daily stop ahead of time, either a number of losses or a dollar amount, and set it inside the firm’s limit, not right at it. When you hit it, you’re done for the day.

Rules vary by firm and change often. CK Trader Pro and NQ Live Trading aren’t owned, run or endorsed by any prop firm. CK has affiliate relationships with some prop firms, including Apex Trader Funding and Lucid Trading, and may earn a commission from sign-ups through his links. No one can promise a pass, funding or a payout, and evaluation fees are generally non-refundable.

What gets in the way

The feeling. A setup looks great, so size goes up. In my experience, that’s exactly when the formula matters most.

The comeback. After a loss, the urge is to size up and win it back. That’s revenge trading, and your daily stop exists for exactly that moment.

The noise. Screenshots of big size and people telling you what to do right now. None of them know your remaining drawdown or your stop. In my sessions I show my plan and my chart setup and explain my thinking. That’s education, not signals. Don’t mirror or follow anyone’s trades in real time, including mine.

Remember this

Stop first, size second.

And when it’s hard: plan the trade, then trade the plan.

Can education help?

Can learning to size from your stop help you trade NQ with more discipline and maybe, one day, profitably? There’s no guarantee of that. Plenty of people get the math right and still don’t pass an evaluation, and fees can be lost entirely. What education can do is help you understand the dollars and the rules before money is on the line. That’s what I teach.

If you’d like to watch first, there’s a free live NQ session on weekdays from 9:30 to 10:30 AM ET at nqlivetrading.com/live, run by the same company. Registration is required. Sessions are education, not signals.

Join the Academy

To go deeper, the CK Trader Pro Membership is $333 a month and includes:

• Members-only educational lessons on prop-firm rules, risk and charting
• War Room: CK’s live pre-market planning session, weekdays 8:30–9:30 AM ET
• CK’s chart setup, shown and explained live in every session
• Economic news calendar

Education only. No trade signals or personal advice.

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Free tool: check what a tick or point is worth on NQ and MNQ with our NQ & MNQ Tick Value Calculator.

Trading futures involves substantial risk of loss and is not suitable for everyone. Past performance is not indicative of future results. Education only, not financial advice. All numbers in this article are illustrations, not results or recommendations. Prop-firm evaluation and funded accounts are typically simulated, fees are generally non-refundable, and rules vary by firm and change often. CK Trader Pro is operated by CK TRADING INSTITUTE OF TECHNOLOGY LLC.